I bought a 150l chest freezer to contain liquid, which I'll use through my Chiller.
I will pre-chill with tap water, but then switch to the chest freezer, using a pond pump to move the liquid through the chiller.
The night before a brew, I will turn on the freezer on and cool the liquid to around 0C - I reckon the pond pump could probably cope with that.
The aim is to get quickly and easily to lager pitching temps.
Question: What should the liquid be, assuming I have a reliable seperation of the wort and coolant paths? Water, glycol, oil
(I am thinking that thermal mass, given finite volume, would give me the maximum cooling potential.)
??
I will pre-chill with tap water, but then switch to the chest freezer, using a pond pump to move the liquid through the chiller.
The night before a brew, I will turn on the freezer on and cool the liquid to around 0C - I reckon the pond pump could probably cope with that.
The aim is to get quickly and easily to lager pitching temps.
Question: What should the liquid be, assuming I have a reliable seperation of the wort and coolant paths? Water, glycol, oil
(I am thinking that thermal mass, given finite volume, would give me the maximum cooling potential.)
??